23380056 has 144 divisors (see below), whose sum is σ = 77189400. Its totient is φ = 6537888.

The previous prime is 23379997. The next prime is 23380057. The reversal of 23380056 is 65008332.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23380057) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 497425 + ... + 497471.

Almost surely, 2^23380056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23380056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38594700).

23380056 is an abundant number, since it is smaller than the sum of its proper divisors (53809344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23380056 is a wasteful number, since it uses less digits than its factorization.

23380056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 23380056 is about 4835.2927522540. The cubic root of 23380056 is about 285.9445668235.

Adding to 23380056 its reverse (65008332), we get a palindrome (88388388).

The spelling of 23380056 in words is "twenty-three million, three hundred eighty thousand, fifty-six".